Tube-stripping method and apparatus



p 1 929. c w. 'LEGUILLON 1,709,942

TUBE STRIPRING METHOD AND APPARATUS Filed June qa, 1925 2 Sheets-Shet l April 23, 1929.- c. w. LEGUILLON TUBE STRIPPING METHOD AND APPARATUS PatentedeApr. 23, 1929 UNI E CHARLE$- ig eastz PANY, OF NEW YORK, N. Y., A CORPURATION OF NEW YORK. I

'rnnn-srmrrme Merrie AND APPARATUS.

Application filed June ee, i925; seamin 40,;12,

This invention relates to the art of manu-.

iaeturing rubber tubes, and especially to removing trem' mandrels upon-which they are vulcanized rubber tubes adapted to have their ends joined to form inner tubes for specific objectsjiwillbecome manifest herepneumatie tires. I v

In this operation the common practice heretofore has been. to mount the mandrel with the vulcanized tubethereon by securing one end of the mandrel in a suitable support adapted to hold the same in a substantially horizontal position wvith out other supporting'mean's, and then to turn'back V the end'jof the tube adjacent the support'to form a @1111 and insert the nozzle of a compressed-air hoseunder the turned back cuff;

the operator walking backwardibeyond the "free end of the mandrel,withdrawing the tube from the latter wrongside out while inflating the turned portion-of the tubeby means of theairnozzle, v My chie fobjeets are toiprovideimproved procedure andapparatus for stripping tubes whereby the manual operations may be re- 7 dueedlin number and rendered less "laborious as; comparedlwith prior practice. More inafterfl j I r Of tllgfilCCOIDPELIlYlIlg drawings Fig. 1 1s a side'elevation of apparatus embodying and adapted to carry outmy invention its-preferred form with the wm'k in p1ace',lp arts being broken away.

, F 2 of Fig.1.

Fig. 3 1s an end elevation of the apparatus 7 as viewed from he leftj o'fFig. 1.

4: is a -plan' view] of the structure shown'fin Fig; 1; parts being broken away. 1 Fig. '5fisfla section onil'inefieii of Flg. 1.

which is threadeddnt'o its medial portion and rotatably andinoiislidably moun ted in a cross-beam 15 se'eured to theupper ends of the guide-posts 12, said screw being provided above the cross-beam with a hand wheel 16.

a vertical section on line 2-2 'Jou rnaled' 'inlthe-brackets 115 13 the work receiving side thereof are parallel driven shafts 17, 18 upon which are mounted w.- LEGVUIQLLON, or, AKRON, OHIO, Assreivea're Tim's. F. eoonmcn comvertically aligned g1'eovecl "soft surfaced feed rollers 19 and 20 respectively, the same beingadapted to impelbetween th'ema tube-f forming mandrel 21upon which anielastie tube 22 has been built and vulcanized, the

shaftl'? being'provided at one "end with a sprocket 23 connected by a sprocket-chain24 wlth a motor 25 mounted beneath the table 10, and the other'end of theshaft '17 being.

provided with a bevel gear 26 meshed with" a similar gear 27 keyed to a vertical shaft 28 whichv has its lower endmounted in a journal 29 formed on the bracket 11.- Slide" by a key 30, is a bevel gear 81 having its hub non-slidably journaled inalateral extension 320i the bracketlg thehgear 31; being mesh ed with a bevel gear '38 mounted on the adjacent end oithe' roller shatt 18,. the "gearv feed rollers19, '20 to impel the mandrel. i I 1 A ,roller'34r of same construction as Y ing being such asto drive the the feed rollers 19, 20 isgloosely journaled in horizontal alignmentwith the latter roller in armstormed on the work delivery side ofthe adjustable bracket 13, said roller 84tbeing adapted to engage the leading end of the mandrel 21 as the latter emerges from between the feed-rollers 19, 20 and raise'the V ftrailing'cnd oif'the mandrelclear of grooved positioning roller-s85, 35 mounted in suitable! brackets at. opposite ends of the table 10 and adapted to receive the mandrel-and guide it into the feed rollers.

- Mount-edtransversely upon the table at each of its. ends is an inclined flanged rail 36; said rails comprising a chut'eladaptedto support a plurality of the mandrels 21 with tubes thereon by engagement'vvith their end portions; Each flanged rail .is provided with an abutment or, stop 37 atits lowe1" end, the stops having their upper faces so P formed and positioned that successive man drels lifted thereoiito will'roll by'gravity of the mandrel :rea rwardly therein 'during the initial stage of the stripplng'operation said abutment being formed with an ear '38 opposite the end or the adjacent rail 36 for preventing the end 'otisaid mandrel] from nov 70 ably keyed onthe shaiit 28 near its upperend from its trailing end. During this opera-f Passing from the feed rollers thc'stripped mandrel is impelled onto therollers 170f the mandrel-ejecting devicean'd against the buffer-plate 59, driving the latter rearwardly against the force of the spring ,60'to open the valve 54, thereby charging the .fiuid'pr'essure cylinder 45. The upwardly moving piston of the latter raises the free ends of the levers 50, causing the mandrel to be lifted V D 'the combination of means for delivering sucfrom the rollers 47'and to roll down the levers 50. onto the delivery chute48. rising of the piston concurrently raises the lift rods 39 to deliver an unstri'pped mandrel from the chute-36onto the positioningrollers 35.

The adjustable feature of the bracket 13 adapts the apparatus for stripping mandrels of various diameters, and also permits easy removal of a mandrel when the tube thereon has been accidently drawn into the feed rollers 19, 20.

My invention provides for greatly iiicreased facility of operation in stripping of the tubes and disposing of the mandrels, and much time being saved by avoiding the necessity of the operator walking'baokward substantially twice the length of the tube in stripping each tube from the mandrel and y then disposing of the mandrel by hand.

My inventionis susceptible to modification within its scope and I donot wholly limit my claims to the specific construction shown or the exact procedure described.

Iclaim: 1. The method of stripping tubes from mandrels which comprises laterally moving successive mandrels in processionv to a strip ping position,'impelling ea chinandrel longitudinally from stripping position while removing the tube therefrom, and disposing .of the mandrels by moving them laterally in succession as they are delivered from the stripping position.

I ,2. Apparatus for stripping a tube from a mandrel, said apparatus comprising rollers adaptedyieldingly and frictionally to engage the mandrel between them to impel it longitudinally, and means for driving said rollers.

3. Apparatus for stripping a tube from a mandrel, said apparatus. eomprismgga pair of driven feed rollers forimpelling the I mandrel longitudinally, and third roller associated therewithvand so positioned as to coact with one of said feed-rollers to inain-' tain said mandrel substantially in horizontal. position without contact with the The tubethereon while the inandrel fed from the tube'by said feed rollers? Y 4. Tube-strippingapparatus comprising tube-mandrel to stripping position, means for impelling it longitudinally therefrom the combination of means, for delivering a while it is stripped, and means for ejecting tube-mandrel to stripping positioinn'ieans,

for impelling it longitudinally therefrom while it is stripped,.means for ejecting the stripped mandrel from the appa 'atus, "and means for concurrently actuating said-"delivering" and ejectingineans. I 5

6. Tube-stripping apparatus compr sing cessive tube-mandrels to stripping position,

means for impelling each of the same longitudinally while the tube isremoved therefrom, means for ejecting. the stripped mandrel from th'e'apparatus, and contact means adapted to be actuated by the longitudinal movement of the mandrel for concurrently actuating said I delivering and ejecting a means. f i

" Tube-stripping apparatus comprising means for supporting a. tube-mandrel in position for the initiation of the stripping operation and roller means adjacent thereto adapted, upon the insertion of one end of the mandrel thereinto, to support the mandrel freely above said supporting means and to feed the mandrel therefrom.

8. Tube-stripping apparatus comprising means for propelling the tube mandrels while they are being stripped, means onto which the mandrels are propelled to stop the same" and off-bearing mechanism for loo removing the mandrels from the second means. I

9. Tube-stripping apparatus COITIPIISiIlg' means for propelling the tubem'andrels in I.

succession while they are {being stripped, means for receiving the mandrels in-suecession from the first means, and means forv removing the mandrels in succession from the second means. 7 v v 10. Apparatus forstripping rubber tubes from straight mandrels comprising cooperating, mandrel-driving rollers, means for feeding mandrels into alignment with the rollers, and means for driving the rollers to. {longitudinally drive the mandrels vwhile they are being stripped,

- 11. Apparatus for stripping, inner tubes I A from straight mandrels comprising means for longitudinally dr ving 1 the mandrels while they are being stripped, and means for feeding the mandrels laterally into'longitudinal alignment with said driving means.

'12. That method of stripping rubber tubes from mandrels which comprises laterally moving the mandrels in succession to a stripping? station, and driving the ina-ndrels longitudinally in succession from the stripping stationqvhilestripping the tubes therefrom.

13. A device {for stripping rubber tubes from mandrels which comprises gripping rollers. for engaging a mandrel therebetween to project the mandrel longitudinally, and

7 means for driving saidi'gripping rollers.

14. A device for stripping rubber tubes from mandrels,comprising opposed mandrel:

gripping and driving rollers, cooperating With the mandrel entirely to support the same horizontally rollers; .7 I v 15. A devicefor stripping rubber tubes from-mandrels said. device including means While drivenrbetween saidv myhand this 26th day ofJu ne, 1925.

CHARLES IWJLEGUILLON.

for feeding mandrels toa stripping station,

' means for longitudinally driving the mandrel while it is being stripped, and'means for ejecting the mandrel froini thede'vice after it has been stripped, I

16. That method for stripping tubes from niandr els which comprises supporting and In Witness whereof I have hereunto set 

